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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[COMPASS-4587] The initial document count (with empty filter) is very slow</title>
                <link>https://jira.mongodb.org/browse/COMPASS-4587</link>
                <project id="13182" key="COMPASS">Compass </project>
                    <description>&lt;p&gt;The initial document count is very slow since the server seems to be scanning the whole collection.&lt;/p&gt;

&lt;p&gt;To reproduce: try to load a big collection, the first load will take seconds. Moving to next page afterwards (which does not involve re-counting) is almost instantaneous.&lt;/p&gt;

&lt;p&gt;I&apos;d expect the first page load to be as fast as the next page since the same amount of documents are loaded.&lt;/p&gt;

&lt;p&gt;Possible fixes:&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Make the count independent from the find and only report the result in the ui when is ready.&lt;/li&gt;
	&lt;li&gt;Use the id field as &lt;tt&gt;hint&lt;/tt&gt; if query is empty: countDocuments({}, 
{hint: &apos;_id_&apos;}
&lt;p&gt;). For what i could test this speeds up the count a tons, the server seems to do an index scan in this case.&lt;/p&gt;&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="1600631">COMPASS-4587</key>
            <summary>The initial document count (with empty filter) is very slow</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13203">Gone away</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="maurizio.casimirri@mongodb.com">Maurizio Casimirri</reporter>
                        <labels>
                    </labels>
                <created>Tue, 26 Jan 2021 13:22:26 +0000</created>
                <updated>Fri, 27 Oct 2023 20:18:57 +0000</updated>
                            <resolved>Fri, 2 Sep 2022 17:13:11 +0000</resolved>
                                    <version>1.25.0</version>
                                    <fixVersion>No version</fixVersion>
                                    <component>Collection</component>
                    <component>CRUD</component>
                    <component>Query</component>
                        <due></due>
                            <votes>0</votes>
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